JPH0452053U

JPH0452053U -

Info

Publication number: JPH0452053U
Application number: JP1990095802U
Authority: JP
Priority date: 1990-09-12
Filing date: 1990-09-12
Publication date: 1992-05-01

Description

[Brief explanation of the drawing]

第１図は本考案の圧電アクチユエータの一実施
例における圧電体部の一例の斜視図、第２図は一
般的な圧電型プリンタヘツドの一例を示す部分破
断平面図、第３図は第２図における圧電アクチユ
エータの一構成例を示す側面図、第４図は第３図
における圧電体部の一従来例を示す斜視図である
。１……取付部材、２……圧電体部、３……リー
ド線、４，２８，２８ａ，２８ｂ……接続部材、
５，６，〜８，１１，１２……結合部材、９，１
０，１３……可動部材、１４……圧電アクチユエ
ータ、１５……ワイヤ、１６……ヘツド台、１７
，１８……スペーサ、２１，２１ａ，２１ｂ……
圧電材、２６，２６ａ，２６ｂ，２７，２７ａ，
２７ｂ……電極、３０，３１……ワイヤガイド、
３２，３３……圧電体。 FIG. 1 is a perspective view of an example of a piezoelectric body in an embodiment of the piezoelectric actuator of the present invention, FIG. 2 is a partially cutaway plan view showing an example of a general piezoelectric printer head, and FIG. FIG. 4 is a side view showing a configuration example of a piezoelectric actuator in FIG. 3, and FIG. 4 is a perspective view showing a conventional example of the piezoelectric body part in FIG. DESCRIPTION OF SYMBOLS 1... Mounting member, 2... Piezoelectric body part, 3... Lead wire, 4, 28, 28a, 28b... Connection member,
5, 6, ~ 8, 11, 12... coupling member, 9, 1
0, 13...Movable member, 14...Piezoelectric actuator, 15...Wire, 16...Head stand, 17
, 18... Spacer, 21, 21a, 21b...
Piezoelectric material, 26, 26a, 26b, 27, 27a,
27b... Electrode, 30, 31... Wire guide,
32, 33...Piezoelectric body.

Claims

[Scope of utility model registration request]

a rod-shaped piezoelectric element that generates dimensional distortion in response to a driving voltage applied between first and second electrodes;
a first electrode surface connected to the first electrode and formed in a layer on one end surface of the piezoelectric element;
first and second piezoelectric bodies each having a second electrode surface connected to the electrode and formed in a layer on the other end surface of the piezoelectric element;
connection of a metal plate to which the first electrode surface of the piezoelectric body is fixed and the first electrode surface of the second piezoelectric body is fixed to the other plate surface for guiding one end of the drive voltage; and the second electrode surfaces of the first and second piezoelectric bodies are respectively fixed to predetermined locations, the other end of the drive voltage is guided, and the first and second piezoelectric bodies generate electricity. In the piezoelectric actuator comprising a metal displacement transmitting member for transmitting dimensional strain to generate displacement in a predetermined direction, the first and second piezoelectric elements have different cross-sectional areas perpendicular to the direction of displacement generation. A piezoelectric actuator featuring: